We spotted another unmarked prototype being ridden at Crankworx. The bike uses a 4-bar suspension design with a Horst link, and the shock is fixed at the lower shock mount (non-floater). Two rear wheel positions allow the use of both 26-inch and 27.5-inch (650B) wheels. When we saw it, the bike was in 650B mode and outfitted with the soon to be available DVO Emerald fork.

Rumors are circulating that it's a Rocky Mountain. Could they be updating their Flatline? The seat tube gusset and large bushings in the pivots look similar to those in Rocky's current lineup, and we all know the Flatline is long due for a refresher. More when we get it!

Rocky's suspension is called Smoothlink, and while it looks very similar to a FSR Horst link design, it is not one. With Smoothlink that chainstay pivot is located slightly above the rear axle and thus does not violate FSR patents.